harbaugh



UNITED STATES PATENT OFFICE.

HOIVARD E. HARBAUGH, OF KENOSHA, WISCONSIN, ASSIGNOR TO THE CHICAGO-ROCKFORD I-IOSIERY COMPANY, OF SAME PLACE.

MACHINE.

SPECIFICATION forming part of Letters Patent No. 583,435, dated May 25, 1897. Application filed February 3, 1896. Serial No. 577,944. (No model.)

T0 on whom it may concern.-

Be itknown that I, HOWARD E. HARBAUGH, a citizen of the United States, residing at Kenosha, in the county of Kenosha and State of Wisconsin, have invented certain new and useful Improvements in Knitting-Machines, of which the following is a specification.

The object of my invention is to so construct and arrange the needle-cylinders of circular-knitting machines that the upper portions thereof and the sinker-slide beds and sinker-slides supported thereby may be elevated sufficiently to leave the points of their needles adapted to enter the lower ends of the quills of a quilled transfer-ring preparatory to having transferred to said needles a course of stitches received by the quills of the transfer-ring from the needles of a machine from which the transfer is being made; and it consists, essentially, of a stationary base-cylinder, a crown-cylinder adapted to slide telescopic- 'ally therein and provided at its upper end with asinker-slide bed furnished with sinkerslides, a series of needles, and a band or spring holding the needles by their lower ends into connection with the base-cylinder, when combined substantially as hereinafter set forth.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a vertical section through one side of a circular-knitting machine embodying my improvements and a quilled transfer-ring, showing the upper portion of the needle-cylinder, the sinker-slide bed, and its sinker-slides elevated sufficiently to leave the points of the machine-needles in position to enter the lower ends of the quills of the transfer-ring, which are represented as resting thereon in proper position to receive the points of the needles as theupper portion of the needle-cylinder descends to its normal position. Fig. 2 is a like view of the same, showing the upper portion of the needle-cylinder in working position and the machine-needles in the quills of the transfer-ring ready to receive therefrom the stitches of the fabric to be transferred thereto. Fig.

3 is a central vertical section of the upper portion of the needle-cylinder detached from the machine.

A is a base-cylinder having a series of vertical radial needle-grooves A therein corresponding in number with the number of necdles in the machine and supported by any suitable frame A B is a crown-cylinder having a series of vertical radial needle-grooves B therein corresponding in number and registering with the needle-grooves A in'the base-cylinder A and adapted to slide telescopically therein.

0 is a sinker-slide bed and is rigidly connected with the upper portion of the crown cylinder B.

D are sinker-slides operative on the slidebed O.-

E is asinker-cam ring having a sink er-slide groove E therein engaging with the lugs D on the sinker-slides D.

F are needles.

G is a spring or band, (here shown as being formed of spirally-coiled wire,) encircling the entire series of needles F of the machine and holding them into connection with the needlegrooves A in the base-cylinder A, whence they project upward into the corresponding needle-grooves B in the crown-cylinder B.

H is alever mounted on the fulcrum-lug H, projecting from the frame A and hingejointed at the end of its short arm H to the lug H on the crown-cylinder B.

I is a pin which prevents the crown-cylinder B from rotating in the base-cylinder A, while permitting it to freely slide vertically therein.

J is a transfer-ring provided with quills J, corresponding in number with the needles F of the machine, to which transfer is to be made, cut away longitudinally, Fig. 2, so as to form in each of them a recess J 2 of suitable dimensions to admit thereinto one of the needles F of the machine.

Supposing the number of needles F of the machine, the number of quills J in the transfer-ring J, and the number of stitches K in one course of the fabric to be transferred to be the samesay one hundred in each case each quill J of the transfer-ring J is inserted through one of the hundred stitches K preparatory to transferring the same. The lever H, Fig. 1, is depressed until the crown-cylinder B and the parts 0 D E are elevated to the positions shown in Fig. 1 preparatory to having the transfer-ring J placed thereon,

which may be properly done by placing the free ends of the series of quills K thereof between the adjacent sinker-slides D of the machine and upon the upper end of the crown-cylinder B, as clearly shown in Fig. 1, when the lever H is released, and the latter descends to the position shown in Fig. and all the parts of the machine and transferring then assume the positions there shown. The stitches K, Fig. 2, are next slid downwvard over the ends of the needles F, when the transfer-ring J is lifted, and the quills J thereof are thereby Withdrawn from the stitches K, and they are left upon the needles F ready to be further added to by knitting.

I claim In a knitting-machine, in combination, a base-cylinder, a crown-cylinder, each having a series of vertical radial needle-grooves therein corresponding in number and registering with the grooves in the other and furnished with needles, a sinker-slide bed provided with sinker-slides and rigidly connected with the upper portion of the crown-cylinder, means for holding the needles, by their lower ends, into connection with the base-cylinder, and means for elevating the crown-cylinder preparatory to placing a quilled transfer-ring in position, on the machine, to receive the machine-needles, as the crown-cylinder descends to its normal position, substantially as and for the purpose specified.

HOWARD E. I-IARBAUGI-I. Vitnesses:

WILLIS W. COOPER, G. H. CURTIS. 

